Electrolytic Oxidation of Ethyl Alcohol to Acetic Acid

G. Zeller
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引用次数: 5

Abstract

The influence of current density, ethanol concentration, and current concentration on the oxidation of ethanol to acetic acid in dilute sulfuric acid solution at platinum gauze anodes has been investigated. The maximum current efficiency, 85%, was obtained at 40° C and 0.2 amp./cm.2, the highest current density tried. Optimum alcohol concentration is about 20%. Efficiency can be raised 2% to 3% by the use of an oxygen carrier, and, at the same current density, is higher at higher current concentration, no maximum being found for this relation within the limits studied. Upwards of 5% increase in efficiency was obtained by substituting sheet lead for platinum gauze as anode material. Energy consumption ranged from 9.9 to 13.8 kw.‐hr./kg. acetic acid, depending on conditions of operation and cell design.
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乙醇电解氧化制乙酸
研究了电流密度、乙醇浓度和电流浓度对稀硫酸溶液中乙醇在铂纱阳极上氧化制乙酸的影响。在40°C和0.2安培/cm条件下,电流效率最高,达到85%。2、最高电流密度试过。最佳酒精浓度为20%左右。使用氧载体可将效率提高2%至3%,并且在相同的电流密度下,在更高的电流浓度下效率更高,在所研究的范围内没有发现该关系的最大值。用铅片代替铂纱作为阳极材料,效率提高5%以上。能耗范围为9.9至13.8千瓦小时/公斤。醋酸,取决于操作条件和电池设计。
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